Residential area in Chofu, Tokyo A hollow is found underground near the road collapse November 4, 15:09
In October, the East Nippon Expressway Company, which is investigating the vicinity of the site, announced on the 4th that a new cavity was found underground due to a road collapse in a residential area in Chofu City, Tokyo.
The cavity extends below 5 meters deep from the surface, about 4 meters wide, about 30 meters long, and about 3 meters high.
The East Nippon Expressway is investigating by installing equipment that captures changes in the ground surface, but says that it does not immediately cause changes in the ground surface.
On the 5th, a committee of experts will consider future measures.